this is a bottle pot with a heat grabber. I did several tests using ISO91. boiled 2 cups of water with 1/3 ounce of fuel. First time ever to get a boil with under 1/2 ounce of fuel. The full metal jacket grabs heat and radiates(infra red) it to the bottle. It protects the bottle from wind which prevents heat loss. Most of the heat/flames goes up through the double wall and out the holes at the top as seen in the video.
.333 ounce of fuel, whoda thunk it!!!
